Business Portfolio

Basic Policies

  1. Aligned with our corporate philosophy and vision, the OYO Group positions its business within three main segments that can contribute to the sustainable development of both Japan and the international communities: "Disaster Prevention and Infrastructure", "Environment and Energy", and "International". We strive to advance our business activities through close collaboration between the various business divisions and group companies within the OYO Group.
  2. The OYO Group, in pursuit of sustained growth and the advancement of medium- to long-term corporate value, evaluates each business division and group company based on capital profitability and growth potential, as well as their strategic roles and future growth strategies within the group. We regularly review the management of our group's business portfolio during board meetings while taking these factors into consideration.

Reviewing the Business Portfolio

We regularly conduct discussions at the board meetings to review the capital profitability, growth potential, and strategic positioning of each business division and group company within the OYO Group from the strategic perspective for future growth. Based on these discussions, we have made the following changes to the business portfolio.

The sale of Group companies

  1. Sold U.S. Group subsidiary NCS SubSea, Inc., engaged in oceanographic geotechnical surveys and seabed resource exploration (June 2022)

    [Reasons / Objectives] To accelerate the transition into the decarbonized market for the resources and energy business

The acquisition of Group companies

  1. Acquired Geosmart International Pte. Ltd. in Singapore, engaged in infrastructure monitoring, geotechnical surveys, and ground improvement (October 2022)

    [Reasons / Objectives] To offer a one-stop service in Singapore's construction market

  2. Acquired OX, Inc., engaged in AI image recognition, AI system planning, design and development. (January 2023)

    [Reasons / Objectives] Strengthening the group's competitive advantage through AI development and the utilization of AI technology

  3. Acquired Nihon Zitan Co., Ltd., which has been contributing to port infrastructure development and marine development in Japan for 50 years since its establishment by engaging in marine surveying, geological surveys, and consulting business as well as marine magnetic serveys (June 2023)

    [Reasons / Objectives] To expand the resources of the group's business and enhance the group's market superiority in the offshore wind power generation market

  4. Acquired Sanyo Techno Marine Co., Ltd., which was established as the first private company specializing in hydrographic surveying, and has expanded its business as a comprehensive marine consultant, covering a wide range of services from hydrographic surveying to marine surveys, such as marine environmental surveys for thermal and nuclear power plant construction, seabed topography and geological investigations for submarine cable installation, and marine surveys for coastal development such as ports (December 2023)

    [Reasons / Objectives] To enhance the group's market competitiveness in the offshore wind power generation market and to cover almost all market areas related to marine surveys, in addition to the business of Nihon Zitan Co., Ltd.

  5. Acquired Geofive Co., Ltd., which has extensive experience as a sales agent for our group's measurement and exploration equipment and possesses capabilities in measurement equipment development (July 2025)

    [Reasons / Objectives] To accelerate our growth strategy of "promoting segment strategies" and to establish a sustainable competitive advantage while evolving into a one-stop service through "on-site technology × consulting" × ICT.

The merging of Group companies

  1. Merged OYO Geotechnical Services Co., Ltd. engaged in geotechnical investigation, seismic surveys, simulated seismic wave generation, and similar activities, into OYO Geo-monitoring Service Co., Ltd. involved in the renting of equipment for surveys and surveying services (April 2023)

    [Reasons / Objectives] Strengthening the business foundation through better streamlined use of management resources for increased efficiency

  2. Merged OYO RMS Corporation, which provides risk analysis services for natural disasters such as earthquakes and typhoons, as well as advisory services related to corporate risk management, into OYO Corporation (April 2024)

    [Reasons / Objectives] To integrate management, consolidate businesses related to natural disaster risk analysis and corporate risk management, advance technological development, and enhance competitiveness

  3. Merged Geofive Co., Ltd., which was acquired in July 2025, into OYO Corporation (September 2025)

    [Reasons / Objectives] To integrate management, further enhance the competitiveness of its measurement instrument business within OYO group

Management Plan

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